7.3 Modern Period Table

Question 1

Where are metals located?

Answer 1

Left and middle because metals tend to lose electrons to achieve a stable electron configuration, resulting in metals forming ions with a positive charge

Question 2

Where are non metals located?

Answer 2

Upper right because they often gain electrons to become stable, resulting in elements to have negative ion charge

Question 3

Where are metalloids located?

Answer 3

In between metals and non metals forming a diagonal staircase line

Question 4

Alkali metals

Answer 4

-furthered left
-most reactive metals
-have only 1 electron in outermost orbit
-never found as free elements in nature

Question 5

Alkaline earth metals

Answer 5

Next to alkali
-all have 2 electrons in outermost orbit

Question 6

Noble gases

Answer 6

Found furthest to right
-unlikely to react
-have full outer orbits
-no compounds of these elements have ever been found in nature

Question 7

Halogens

Answer 7

Next to Noble gases
-most reactive non-metals
-outer orbits only need one electron in order to be competely filled
-contain elements from all three states of matter at room temp

Question 8

Family of one-hydrogen

Answer 8

Found at top left

-Sometimes acts like metal; sometimes like non metal
-has only one electron in outermost orbit
-outer orbits only needs one electron to be completely filled
-both active and versatile

Question 9

Rare earths

Answer 9

2 rows at bottom

Question 10

Calculating # of electrons in ion

Answer 10

-# of protons does not change
3+ means three fewer electrons
3- means three more electrons